Improvement in axle-boxes for street-cars



JOHN STEPHENSON.

Improvement in Axle-Boxes fop Stree t-CarsL I N0.127,524, Patentedjune4,* .87.2.

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UNITED STATES JOHN STEPHENSON, OF NEW YORK, N. Y.

IMPROVEMENT m AXLE-BOXES FOR STREET-CARS.

Specification forming part of Letters Patent No. 127,524, dated June 4,1872.

' spring-catch removed. Fig. 3 is aview of the cap detached. Fig. 4represents a modification of device shown in Fig. 1.

Similar letters of reference indicate corresponding parts.

Various devices have been used for securing the cap or cover to theaxle-box, but all have been more or less unsatisfactory. Bolt-fasten.

ings are unreliable, because, liable to loosen; the bolts will turn outor, if cast in, they are apt to break off in the casting, causing lossof v the cap and exposing the axle-journal to dust and mud. Gaps hingedto the box at the top, with a bolt or wedge at the bottom, though notliable to loose, are noisy, and cause trouble in packing the box.

Arepresents the cap. B is the axle-box. O is the open hinge-joint, whichallows it to be detached without difiiculty. I also make the cap ofelastic material and fit its lower edge into a groove, D. On the centerof the lower edge I form a lug, E. When the upper edge is attached bythe hinge, the lower edge is forced into the groove by a blow on the lnThe elasticity of the cap will allow of this, and also of its removal bythe same means. As another method of fastening the cap, I extend the lugdownward, and make it of such a form that a screw, or bolt, or latch,"F, may connect it with the lower part of the box. By this last mode thecap is secured to the box, either with or without the groove, and alsowith or without the use of the elastic metal in the cap. This lastmethod is clearly shown in Fig. 1, which I regard as a modification ofthat exhibited in Fig. 4 of drawing. In this figure the lug E forms apart of cap A, and consequently there is no notch like that marked D inFig. 4; but the bolt F still holds the cap firmly up to the axle-box B.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The open joint 0, by which the lid is detachablyconnected to the box and at the same time secured against loss, as setforth.

2. The elastic cap, in combination with the grooved box, the parts beingadapted to operate as set forth.

3. The cap, made with open joint 0 and provided with the lug E, and heldby bolt and nut, or equivalent means, to lug F on the box, theconstruction being such that the fastening devices may draw on the capand prevent rattling, as set forth.

- JOHN STEPHENSON.

- Witnesses:

'I. B. MOSHER, ALEx.-F. ROBERTS.

